A 10-year-old girl came up with the idea of an optical illusion on crosswalks to help keep her classmates safe. https://t.co/OQzT56NnL6— ABC 7 Chicago (@ABC7Chicago) April 25, 2019
A 10-year-old girl came up with the idea of an optical illusion on crosswalks to help keep her classmates safe. https://t.co/OQzT56NnL6